Selene Gallio

Emerging from the Bronze Age darkness of Chris Claremont and John Romita Jr.'s Uncanny X-Men in 1984, Selene Gallio is one of Marvel's most enduring and genuinely unsettling figures — a character whose presence across four decades and titles like The New Mutants and X-Force speaks to a staying power few villains can claim. Her ties to the Hellfire Club give her a place among Marvel's most dangerous power brokers, and she's kept company with icons like Storm and Colossus throughout her long history. With four key-issue appearances to her name and a trail stretching all the way to 2024, Selene is exactly the kind of deep-cut Marvel creation that rewards the curious collector who digs past the first tier — ancient, formidable, and absolutely worth tracking down.